Surname Thaddee (Thaddee 
) , across the world, is quite a rare last name. The surname Thaddee is habitual in Sub-Saharan Africa, particularly Burundi, where it is quite a rare surname, the Democratic Republic of the Congo, and Rwanda, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Sub-Saharan Africa, particularly the Democratic Republic of the Congo, Cameroon, and Burundi. Also, Thaddee is the forename as well as the last name.